Low
A.00.29 on Baxi Assure System

Your boiler has detected an error with the temperature sensor connected to your solar heating system, which may prevent it from correctly reading your water temperature.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Solar temperature sensor is either shorted or measures a temperature above range

Shared across the Assure range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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All 66 fault codes on the Assure System

Seeing a different code? Every code this model can display, in one place.

101213A.00.28A.00.34A.02.06A.02.18A.02.36A.02.37A.02.45A.02.46A.02.48A.02.49A.02.54A.02.55A.02.76E.00 .04E.00 .05E.00 .16E.00 .17E.00 .20E.00 .21E.01 .04E.01 .12E.01 .17E.01 .20E.02 .13E.02 .17E.02 .35E.02 .39E.02 .47E.04 .01E.04 .02E.04 .08E.04 .12E.04 .13E.04 .17E.04 .18E.04 .23E.04 .29E.04 .54E.04 .254E.04.03E.04.10H.00.42H.00.81H.01 .14H.01.00H.01.05H.01.08H.01.18H.01.21H.02 .00H.02 .02H.02 .03H.02 .04H.02 .05H.02 .09H.02 .10H.02 .70H.02.07H.03 .00H.03 .05H.03 .54H.03.02

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